Specification Brand : Yctze BulletPoint1 : Using chrome-plated material, it has stability and resistance BulletPoint2 : CALIBRATION WEIGHTS SET: This is a set of calibration weights with 5 different sizes of calibration weights, 1g, 2g, 5g, 10g, 20g. for calibration weights, or electronic balances and scales. BulletPoint3 : Thin and tight wrapping feeling, can effectively shape the arm, and there is no problem wearing it inside the clothes. BulletPoint4 : Package Includes: This is a set of calibration weights, there are 5 different specifications of calibration weights. Item weight: 1g / 2g / 5g /10g / 20g BulletPoint5 : Wide application: suitable for general laboratory, commercial, educational use, and so on; The permissible error is -0.005 to +0.005 g ItemName : Yctze Mini Digital Scales Calibration Weight Set - 1g, 2g, 5g, 10g, 20g Precision Test Weights - Convenient for Small Scale Calibration - for Labs and Kitchen Use ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 4 centimeters ItemPackageDimensions_Width : 3 centimeters ItemTypeKeyword : calibration-weights Manufacturer : Yctze ModelNumber : Yctze5gnph2cbrm PartNumber : Yctze5gnph2cbrm ProductDescription : 1. This is a set of calibration weights, with 5 different specifications of calibration weights 2. The appearance of the weight is glossy and shiny, and the production is fine 3. Our weights are conjoined cylindrical, with raised parts on the upper end, easy to grasp 4. Using chrome-plated material, it has stability and resistance 5. Suitable for general laboratory, industrial measurement, educational purposes, etc.; the allowable error is -0.003 to +0.003 g